Physical weathering
Physical weathering
Frost action is a type of mechanical weathering. It occurs when water seeps into cracks in rocks, freezes, expands, and causes the rock to break apart.
frost wedging ?
Ice wedging (frost action)
The particular frost action that is an example of mechanical weathering is called frost wedging. This occurs when water seeps into cracks in rocks, freezes, expands, and ultimately causes the rock to break apart.
Frost action
frost wedging
Frost action, alternating wetting and dryness, and temperature changes.
mechanical
Frost action is a type of physical weathering caused by the expansion of water when it freezes and contracts when it thaws. This repeated freeze-thaw cycle weakens rocks and can lead to the breakdown of rock surfaces.
The three agents for physical mechanical weathering are ice (frost action), wind (abrasion), and water (running water).
Mechanical weathering - Disintegration - breaks down into smaller pieces, no new substance. Frost Action, Abrasion, Gravity, Organic Activity, Wetting and Drying, and Joint Sheeting are the six major causes of mechanical weathering.